Self setting power supply using negative output impedance
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United States of America Patent
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Nov 21, 2017
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N/A
app pub date -
Feb 4, 2016
filing date -
Mar 14, 2013
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Abstract
A self-setting power supply monitors a supply current drawn by a power amplifier and sets a supply voltage based on the supply current to achieve efficient power operation. In order to maintain operation of the power amplifier above minimum operating conditions, the self-setting power supply sets the supply voltage to the minimum operating voltage when the supply current drops below a threshold bias current. When the supply current is above the threshold bias current, the self-setting power supply adjusts the supply voltage approximately proportionally to the supply current to maintain approximately constant gain of the power amplifier.
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